For a healthy mind and an active body, B1 is one vitamin you can’t be without! The first B- vitamin to be discovered, thiamin plays crucial roles in energy metabolism and nerve cell function, making it essential for the health of both mind and body. Because thiamin can’t be stored in the body, it’s important to get a good supply every day. Swanson Vitamin B1 capsules are a convenient way to ensure that you meet your daily needs.